Progressive steering system
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United States of America Patent
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N/A
Issued Date -
Feb 19, 2004
app pub date -
Feb 24, 2003
filing date -
Feb 22, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vehicle has a progressive steering system that includes a variable-length moment arm, the length of which varies as a function of a steering angle of the steering system. As the steering system is pivoted away from a neutral position, the torque that must be applied to a steering actuator to pivot the steered device and a rate of steering movement of the steered device per degree or rotation of the steering actuator both increase. The variable-length moment arm is formed by offset pivoting swivel and guide arms. A ball bearing that is fixed to the guide arm engages a groove formed in the swivel arm. Consequently, the ball bearing defines a force acting point that is located a variable distance from the swivel arm's pivotal axis.
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